<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>《React 官网教程》</title>
</head>

<body>

    <div id="root"></div>

    <script src="https://unpkg.com/react@16/umd/react.development.js" crossorigin></script>
    <script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js" crossorigin></script>
    <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>

    <script type="text/babel">

        class App extends React.Component {

            render() {
                return (
                    <div>Hello React!</div>
                );
            }
        }

        ReactDOM.render(
            <App />,
            document.getElementById('root')
        )

    </script>

</body>

</html>